Tecno Spark 4 vs UMIDIGI A3X

Tecno Spark 4

UMIDIGI A3X

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 2100

W-CDMA 850, 900, 1700, 1900, 2100
4G network

LTE frequency band 1, 3, 5, 8, 38, 40, 41

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(850), 19(850), 20(800), 26(850), 28(700), 38(2600), 40(2300), 41(2500)
HSDPA speed

42.2 Mbps

-
HSUPA speed

5.76 Mbps

-
LTE speed

LTE, Cat4, 150 Mbps download, 50 Mbps upload

LTE Cat 4, 150 Mbps download, 51 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Main camera
Camera type

Triple

Dual
Main camera

13 MP, f/1.8

16 MP, f/2.0 , 0.26" , 1.132 µm
2 MP

16 MP
0.3 MP

5 MP
Primary camera resolution

4128 x 3096 pixels

4608 x 3456 pixels
Primary camera video

720p@30fps

1080p@30fps
Primary camera flash

dual-LED flash

dual LED flash
Camera features

Autofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode

Autofocus, continuous shooting, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

-

Yes
Wi-Fi display

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

microUSB 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v4.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth HID

-

Yes
bluetooth LE

Yes

Yes
NFC

No

-
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
Beidou

-

Yes